It's known to all the smokers that quitting smoke is very tough.
The nicotine in tobacco makes the smoker addicted and hence they keep smoking even after knowing that it is harmful for their health.
One who contemplates quitting needs to have very strong willpower and motivation.
Willpower and motivation comes from the understanding of the benefits of quitting.
Yes, benefits of quitting tobacco are unlimited! Common human beings expect their health to improve.
When the smokers quit smoking, it is just the beginning of a wonderful journey.
As an ex-smoker, I want you to know the positive effects of stopping to smoke.
I have listed below the positives of quit smoking which I have personally experienced plus experienced by people who have recently quit.
The return on our efforts to kick the habit far outweighs the work it takes to achieve this goal.
The benefits truly are unlimited!

• Every breath taken feels so clean and refreshing

• No feeling oftiredness during the day...
  yet sound sleep at night

• More stamina, endurance, and confidence

• More cash in pocket

• Clothes don't stink

• Not ashamed of smoking anymore

• Anxiety level has gone way, way down

• Can breathe!

• Working out like a champ

• Full control of Self

• No more coughing

• Eating better

• Better sense of smell again

• Much better complexion

• Heart feels relaxed...
  like it can do more work with less effort now

• Less heartburn and indigestion

• More respect for self

• No need to worry about attending events where one can't smoke

• The house smells good! The car smells good!

• No more fear of fire caused by smoking

• Spend more money on health, like working out at a health club, instead of on cigs

• Sinus problems are gone!

• Allergies and asthma have improved

• "I don't feel like a hypocrite"

• "I can sing again!"

• No more time wasted smoking

• Whiter teeth

• Fresh breath

• Sharper thinking

• Pride in self

• No more guilt about exposing family and friends to secondhand smoke

• Confidence in the ability to achieve whatever goal I set for myself!

You will be able to achieve same happiness, confidence and better health if you succeed in quitting smoke.
If you have failed earlier, do not let that failure take over your willpower and motivation.
Because, you have greater and more powerful reasons to keep on trying until you succeed.
So, try and try again.